Not the original
It would be helpful if emusic were to warn us when the tracks on compilations are not the originals. To emusic's credit, though, the clip provided for Rock Around the Clock does contain the famous guitar solo, which really is the acid test. It's a spirited performance (live by the sound of it), so it might be of interest to some fans, but it doesn't sound like the real thing to me. I haven't listened to the other extracts but I imagine it's the same story with them.
